A week ago I sat in on a presentation for a type of software I had never had dealings with before: historian software. It was GE's version of the software, called Proficy. Before the demo I did a quick check on what the software was, and it really just sounded like a database with a nice GUI.
But after the presentation I have to admit that it's really a lot more than that. I'm not sure if I'll ever use anything like this, since it seems geared towards enterprise-level applications and I gravitate to startup companies. But it's still neat.
It's always cool to learn about something new in this field. Maybe I'll check out NI's historian software, NI Citadel.